[OS 8 RC] In the 'Secure' session, some apps and Titlebars don't use the elementary Stylesheet.

[cyrneko]

What Happened?

Upon selecting the 'Secure' / Wayland session, I noticed that anything GTK3 as well as some apps' titlebars were not using the elementaryOS Stylesheet. This affects things like Signal and Vesktop, which don't have their own titlebars by default, as well as ScreenRec and the LibreWolf Flatpak.

As a side-note, I have only tested this with Flatpaks from Flathub and AppCenter.

Steps to Reproduce

1. Enable/Switch to the 'secure' session before login
2. Open a GTK3 Application, or one that uses Serverside-Decorations (OS titlebars)
3. Observe issue

Expected Behavior

The applications should use the elementaryOS stylesheet.

OS Version

8.x (Early Access)

Session Type

Secure Session (Wayland)

Software Version

Latest release (I have run all updates)

Log Output

No response

Hardware Info

No response

[danirabbit]

Very likely fixed by elementary/default-settings#319